001    /*
002     * Copyright 2010-2016 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.asJava;
018    
019    import com.intellij.openapi.util.Key;
020    import com.intellij.openapi.util.UserDataHolder;
021    import com.intellij.psi.*;
022    import com.intellij.psi.impl.compiled.ClsClassImpl;
023    import com.intellij.psi.impl.compiled.ClsEnumConstantImpl;
024    import com.intellij.psi.impl.compiled.ClsFieldImpl;
025    import com.intellij.psi.impl.compiled.ClsRepositoryPsiElement;
026    import com.intellij.psi.impl.java.stubs.*;
027    import com.intellij.psi.stubs.StubBase;
028    import com.intellij.psi.stubs.StubElement;
029    import org.jetbrains.annotations.NotNull;
030    import org.jetbrains.annotations.Nullable;
031    
032    public class ClsWrapperStubPsiFactory extends StubPsiFactory {
033        public static final Key<LightElementOrigin> ORIGIN = Key.create("ORIGIN");
034        private final StubPsiFactory delegate = new ClsStubPsiFactory();
035    
036        @Nullable
037        public static LightMemberOriginForDeclaration getMemberOrigin(@NotNull PsiMember member) {
038            if (member instanceof ClsRepositoryPsiElement<?>) {
039                StubElement stubElement = ((ClsRepositoryPsiElement<?>) member).getStub();
040                if (stubElement instanceof UserDataHolder) {
041                    LightElementOrigin origin = ((UserDataHolder) stubElement).getUserData(ORIGIN);
042                    if (origin instanceof LightMemberOriginForDeclaration) {
043                        return (LightMemberOriginForDeclaration) origin;
044                    }
045                }
046            }
047    
048            return null;
049        }
050    
051        @Override
052        public PsiClass createClass(@NotNull PsiClassStub stub) {
053            final PsiElement origin = getOriginalElement(stub);
054            return new ClsClassImpl(stub) {
055                @NotNull
056                @Override
057                public PsiElement getNavigationElement() {
058                    if (origin != null) return origin;
059    
060                    return super.getNavigationElement();
061                }
062    
063                @Nullable
064                @Override
065                public PsiClass getSourceMirrorClass() {
066                    return null;
067                }
068            };
069        }
070    
071        @Nullable
072        private static PsiElement getOriginalElement(@NotNull StubElement stub) {
073            LightElementOrigin origin = ((StubBase) stub).getUserData(ORIGIN);
074            return origin != null ? origin.getOriginalElement() : null;
075        }
076    
077        @Override
078        public PsiAnnotation createAnnotation(PsiAnnotationStub stub) {
079            return delegate.createAnnotation(stub);
080        }
081    
082        @Override
083        public PsiClassInitializer createClassInitializer(PsiClassInitializerStub stub) {
084            return delegate.createClassInitializer(stub);
085        }
086    
087        @Override
088        public PsiReferenceList createClassReferenceList(PsiClassReferenceListStub stub) {
089            return delegate.createClassReferenceList(stub);
090        }
091    
092        @Override
093        public PsiField createField(PsiFieldStub stub) {
094            final PsiElement origin = getOriginalElement(stub);
095            if (origin == null) return delegate.createField(stub);
096            if (stub.isEnumConstant()) {
097                return new ClsEnumConstantImpl(stub) {
098                    @NotNull
099                    @Override
100                    public PsiElement getNavigationElement() {
101                        return origin;
102                    }
103                };
104            }
105            else {
106                return new ClsFieldImpl(stub) {
107                    @NotNull
108                    @Override
109                    public PsiElement getNavigationElement() {
110                        return origin;
111                    }
112                };
113            }
114        }
115    
116        @Override
117        public PsiImportList createImportList(PsiImportListStub stub) {
118            return delegate.createImportList(stub);
119        }
120    
121        @Override
122        public PsiImportStatementBase createImportStatement(PsiImportStatementStub stub) {
123            return delegate.createImportStatement(stub);
124        }
125    
126        @Override
127        public PsiMethod createMethod(PsiMethodStub stub) {
128            return delegate.createMethod(stub);
129        }
130    
131        @Override
132        public PsiModifierList createModifierList(PsiModifierListStub stub) {
133            return delegate.createModifierList(stub);
134        }
135    
136        @Override
137        public PsiParameter createParameter(PsiParameterStub stub) {
138            return delegate.createParameter(stub);
139        }
140    
141        @Override
142        public PsiParameterList createParameterList(PsiParameterListStub stub) {
143            return delegate.createParameterList(stub);
144        }
145    
146        @Override
147        public PsiTypeParameter createTypeParameter(PsiTypeParameterStub stub) {
148            return delegate.createTypeParameter(stub);
149        }
150    
151        @Override
152        public PsiTypeParameterList createTypeParameterList(PsiTypeParameterListStub stub) {
153            return delegate.createTypeParameterList(stub);
154        }
155    
156        @Override
157        public PsiAnnotationParameterList createAnnotationParameterList(PsiAnnotationParameterListStub stub) {
158            return delegate.createAnnotationParameterList(stub);
159        }
160    
161        @Override
162        public PsiNameValuePair createNameValuePair(PsiNameValuePairStub stub) {
163            return delegate.createNameValuePair(stub);
164        }
165    }